//===================首页图片转换
var cpAD=new Array(); 
var cpADlink=new Array(); 
var cpADmsg=new Array(); 
var adNum=4; //定义了5个数组
var coll=0;

cpAD[3]="/images/11.jpg"; //链接图片
cpADlink[3]="#"; //链接URL
cpADmsg[3]="中亚兴维修培训中心！"; //状态栏提示信息

cpAD[1]="/images/22.jpg"; 
cpADlink[1]="#"
cpADmsg[1]="中亚兴维修培训中心！"; 

cpAD[2]="/images/33.jpg"; 
cpADlink[2]="#"; 
cpADmsg[2]="中亚兴维修培训中心！";

cpAD[0]="/images/44.jpg"; 
cpADlink[0]="#"; 
cpADmsg[0]="中亚兴维修培训中心！";

var preloadedimages=new Array(); 
for (i=1;i<cpAD.length;i++){ 
preloadedimages[i]=new Image(); 
preloadedimages[i].src=cpAD[i]; 
} 

//跳转的URL地址
function jump2url()
{ 
jumpUrl=cpADlink[adNum]; 
jumpTarget='_blank'; 
if (jumpUrl != '')
{ 
if (jumpTarget != '')
window.open(jumpUrl,jumpTarget); 
else location.href=jumpUrl; 
} 
}

//图片变化的函数
function changeimg(n)
{
adNum=n;
switch(adNum)
{
case 0:
{
window.img1.src="/images/guanggao/1-2.gif";
window.img2.src="/images/guanggao/2.gif";
window.img3.src="/images/guanggao/3.gif";
window.img4.src="/images/guanggao/4.gif";
break;
}
case 1:
{
window.img1.src="/images/guanggao/1.gif";
window.img2.src="/images/guanggao/2-2.gif";
window.img3.src="/images/guanggao/3.gif";
window.img4.src="/images/guanggao/4.gif";
break;
}
case 2:
{
window.img1.src="images/guanggao/1.gif";
window.img2.src="//images/guanggao/2.gif";
window.img3.src="/images/guanggao/3-2.gif";
window.img4.src="/images/guanggao/4.gif";
break;
}
case 3:
{
window.img1.src="images/guanggao/1.gif";
window.img2.src="//images/guanggao/2.gif";
window.img3.src="/images/guanggao/3.gif";
window.img4.src="/images/guanggao/4-2.gif";
break;
}
}
window.clearInterval(theTimer);
adNum=adNum-1;
nextAd();
}
//当点击时直接跳转
function nextAd(){ 
coll++;
if(coll>1)
{
switch(adNum+1)
{
case 4:
{
window.img1.src="/images/guanggao/1-2.gif";
window.img2.src="/images/guanggao/2.gif";
window.img3.src="/images/guanggao/3.gif";
window.img4.src="/images/guanggao/4.gif";
break;
}
case 1:
{
window.img1.src="/images/guanggao/1.gif";
window.img2.src="/images/guanggao/2-2.gif";
window.img3.src="/images/guanggao/3.gif";
window.img4.src="/images/guanggao/4.gif";
break;
}
case 2:
{
window.img1.src="/images/guanggao/1.gif";
window.img2.src="/images/guanggao/2.gif";
window.img3.src="/images/guanggao/3-2.gif";
window.img4.src="/images/guanggao/4.gif";
break;
}
case 3:
{
window.img1.src="/images/guanggao/1.gif";
window.img2.src="/images/guanggao/2.gif";
window.img3.src="/images/guanggao/3.gif";
window.img4.src="/images/guanggao/4-2.gif";
break;
}
}
}
if(adNum<cpAD.length-1)adNum++ ; 
else adNum=0; 
setTransition(); 
document.images.cpADrush.src=cpAD[adNum]; 
playTransition(); 
displayStatusMsg();
//定义了轮换时间 5s
theTimer=setTimeout("nextAd()", 5000); 
} 

function setTransition(){ 
if (document.all){ 
cpADrush.filters.revealTrans.Transition=23; 
cpADrush.filters.revealTrans.apply(); 
} 

} 
function playTransition(){ 
if (document.all) 
cpADrush.filters.revealTrans.play() 
} 
function displayStatusMsg() { 
status=cpADmsg[adNum]; 
document.returnValue = true; 
} 
//=====================图片转换结束